Online detection device for shield tunneling machine cutter

Abstract

The invention provides an online detection device for a shield tunneling machine cutter, which relates to the technical field of shield tunneling machines. The device comprises a blind hole, a reflector, a laser sensor, a transparent plug, a magnetic object to be detected, a magnetic sensor, an acceleration sensor and a signal acquisition and control system, wherein openings of the blind holes are formed in an inner wall of a cutter hub and extend into a cutter ring; the reflector is arranged at the bottom of the blind hole; the laser sensor is arranged on the cutter shaft sleeve, emits a laser signal into the blind hole and receives a reflected laser signal; the transparent plug is arranged at one end of the blind hole close to the opening; the magnetic object to be detected is arranged on an inner wall of the cutter hub; the magnetic sensor is arranged on the cutter shaft sleeve and is used for detecting the magnetic object to be detected; the acceleration sensor is arranged on a shaft sleeve of the cutter shaft and used for monitoring a vibration state of the cutter in the operation process. The device is advantaged in that technical problems that in the prior art, a traditional detection method is complex in process, low in reliability and safety, difficult to deal with complex geology and prone to causing damage to a system are solved.

Description

technical field [0001] The present invention relates to the field of shield machine technology, and more specifically, relates to an online detection device for a shield machine tool. Background technique [0002] As a large-scale tunnel and subway construction equipment, the shield machine has an extremely complex system, and the shield machine tool is an important part of it, but it is inevitable that failures and wear occur frequently. In the harsh environment full of rock and soil, the detection of tool failure and wear has become a major difficulty. However, if faulty or damaged knives are not found in time, huge economic losses or even catastrophic accidents will be caused. [0003] The traditional shield machine tool detection and maintenance method is downtime inspection. Due to the complexity of the environment, manual inspection is dangerous. The excavation area is in a high-pressure environment. Manual inspection is not only a heavy workload but also cannot stay ...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an online detection device for shield machine tools, which aims to solve the technical problems of traditional detection methods in the prior art, which are complex in process, low in reliability and safety, difficult to deal with complex geology and easy to cause damage to the system

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